LukeW | Web Application Form Design

When the time to complete a form needs to be minimized and the data being collected is mostly familiar to users (for instance, entering a name, address, and payment information in a check-out flow), a vertical alignment of labels and input fields is likely to work best. Each label and input field is grouped by vertical proximity and the consistent alignment of both input fields and labels reduces eye movement and processing time. Users only need to move in one direction: down.